Equivalent & Substitute Parts for 478RZM035M

Part Overview

The 478RZM035M is a 4700 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active product status and serves general-purpose applications requiring through-hole mounting. The part features a 3000-hour lifetime rating at 105°C with ±20% capacitance tolerance and operates across the temperature range of -55°C to 105°C.

Substitute parts are identified to address inventory availability, extended operational lifetime requirements, automotive-grade certifications, or improved electrical performance characteristics while maintaining core electrical and mechanical compatibility.

Substiute Parts

478RZM035M

Cornell Dubilier / Illinois CapacitorIn Stock: 1127478RZM035M Datasheet

Current PartRFQ

B41858C7478M000

EPCOS - TDK ElectronicsIn Stock: 20535B41858C7478M000 Datasheet

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B41888C7478M000

EPCOS - TDK ElectronicsIn Stock: 1695B41888C7478M000 Datasheet

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MAL215050472E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1792MAL215050472E3 Datasheet

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UPS1V472MHD

NichiconIn Stock: 1343UPS1V472MHD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 478RZM035M is determined by strict adherence to the following parameters:

Mandatory Matching Parameters:

• Capacitance: 4700 µF (exact match required)
• Voltage - Rated: 35 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: Radial, Can (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.295" (7.50mm) (exact match required)
• Size / Dimension: 0.709" Dia (18.00mm) (exact match required)
• Operating Temperature: -55°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)

Performance Parameters (Variable):

• ESR (Equivalent Series Resistance): May vary
• Lifetime @ Temp.: May vary (equal or extended acceptable)
• Impedance: May vary
• Ripple Current: May vary

All identified substitute parts meet the mandatory matching parameters. Variations in performance parameters represent either equivalent or upgraded electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

B41858C7478M000 (EPCOS - TDK Electronics)

This substitute part is classified as Active product status with automotive application designation. It provides improved electrical performance with 16 mOhm ESR at 10kHz and extended 5000-hour lifetime at 105°C compared to the original 478RZM035M. The part maintains identical mechanical compatibility and RoHS3 compliance. Selection is appropriate for applications requiring enhanced reliability over the original specification.

B41888C7478M000 (EPCOS - TDK Electronics)

This substitute part is classified as Active product status with automotive application designation and AEC-Q200 certification. It delivers the lowest impedance (12 mOhms) and highest ripple current capability (5.327 A @ 100 kHz) among all substitutes, with maximum 10000-hour lifetime at 105°C. Mechanical compatibility is maintained with identical lead spacing and diameter. Selection is appropriate for demanding automotive applications requiring extended operational life and superior high-frequency performance.

MAL215050472E3 (Vishay Beyschlag/Draloric/BC Components)

This substitute part is classified as Active product status with automotive application designation and AEC-Q200 certification. It provides 10000-hour lifetime at 105°C with 18 mOhm impedance. Height dimension is 1.673" (42.50mm), representing a 0.019" (0.50mm) increase from the original specification. Mechanical compatibility is maintained for standard through-hole PCB layouts. Selection is appropriate for automotive applications where extended lifetime is required.

UPS1V472MHD (Nichicon)

This substitute part is classified as Not For New Designs product status. It provides parametric equivalence to the original 478RZM035M with identical 3000-hour lifetime at 105°C and general-purpose application classification. Impedance is 27 mOhms with ripple current capability of 3.3 A @ 100 kHz. Mechanical compatibility is maintained with identical dimensions. Selection is appropriate only for replacement or legacy design applications where new design qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can B41858C7478M000 be used as a direct replacement for 478RZM035M?

A: Yes. B41858C7478M000 meets all mandatory matching parameters: 4700 µF capacitance, 35 V rated voltage, ±20% tolerance, radial can package, through-hole mounting, 0.295" lead spacing, 0.709" diameter, and 1.654" maximum height. The substitute provides improved ESR performance (16 mOhm vs. 78 mOhm) and extended lifetime (5000 hours vs. 3000 hours).

Q: What is the difference between B41858C7478M000 and B41888C7478M000?

A: Both parts are EPCOS - TDK Electronics automotive-grade substitutes with identical mechanical compatibility. B41888C7478M000 provides superior electrical performance with lower impedance (12 mOhms vs. 15 mOhms), higher ripple current capability (5.327 A vs. 4.467 A @ 100 kHz), and extended lifetime (10000 hours vs. 5000 hours). B41888C7478M000 includes AEC-Q200 certification.

Q: Is MAL215050472E3 mechanically compatible with the original 478RZM035M?

A: MAL215050472E3 maintains compatibility for lead spacing (0.295"), diameter (0.709"), and mounting type (through-hole). The seated height is 1.673" (42.50mm) compared to 1.654" (42.00mm) for the original, representing a 0.50mm increase. This dimension variance is within typical PCB layout tolerances for through-hole components.

Q: Why is UPS1V472MHD marked as "Not For New Designs"?

A: UPS1V472MHD carries product status designation of "Not For New Designs," indicating the manufacturer has discontinued active development and qualification for new applications. This part remains available for replacement and legacy design support only. For new designs, selection of B41858C7478M000, B41888C7478M000, or MAL215050472E3 is recommended.

Q: What are the key electrical differences between the substitute parts?

A: ESR and impedance vary across substitutes. B41888C7478M000 provides the lowest impedance (12 mOhms) and best high-frequency ripple current performance (5.327 A @ 100 kHz). MAL215050472E3 provides moderate impedance (18 mOhms) with extended lifetime. UPS1V472MHD provides higher impedance (27 mOhms) with performance equivalent to the original 478RZM035M. All substitutes maintain identical capacitance, voltage rating, and tolerance specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts—B41858C7478M000, B41888C7478M000, MAL215050472E3, and UPS1V472MHD—are ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the original 478RZM035M.

Q: Which substitute is recommended for automotive applications?

A: B41858C7478M000, B41888C7478M000, and MAL215050472E3 are all designated for automotive applications. B41888C7478M000 and MAL215050472E3 include AEC-Q200 certification. B41888C7478M000 provides the highest performance specification with 10000-hour lifetime and lowest impedance (12 mOhms).